DownloadOnly property

True to disable uploads when synchronizing, false to enable uploads. The default is false.

At most, only one synchronization command (ULSyncParms.DownloadOnly, ULSyncParms.PingOnly, ULSyncParms.ResumePartialDownload,
or ULSyncParms.UploadOnly) can be specified at a time. If more than one of these parameters is set to true, a ULSQLCode.SQLE_SYNC_INFO_INVALID
SQLException is thrown by ULConnection.Synchronize().